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Dec. 18 1923. 1,477,842

F. NAROBE BAKING MACHINE @wwf/41W? @5% /S (iii/touw? Dec. 18 192,3. 1,477,842

F. NAROBE BAKING MACHINE Filed July 8. 1921 5 Sheets-Sheet 2 INVENTOR BY /5 ATTORNEY Dec. 18 1923. 1,477,842

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F. NAROBE BAKING MACHINE Filed July 8, 1921 5 Sheet-Sheei', 4

. Huilnmllla/Nyf BY his ATTORNEY Patented Dec. 18, 1923. y 11942777842 UNITED STATES PATENT GFFICE.

FRANK NAROBE, OF NEXV YORK, NfY.

BAKING MACHINE.

Application filed July 8, 1921. -Serial No. 483,242.

To allen/om-tmay/ concern.' ot said connect-ion taken on the line C-C 55 Be 1t known that l, FRANK NAnon, a citiot Figure l1. :een ot Yugoslavia, and resident or' New Figure 1.3 is a side eleva fional view of my x7 y +1 t 1N w] Q 1- 1 rois, in t ie coun y ot ew ioik and tate assem led balnnggl machine, partly diagramot New York, have invented certain new and matic and showing one method oil driving useful improvements in Baking' Machines, the mechanism oi same, and 60 ot' which the following?,- is a speciiication. Figure lll is a perspective view or my This invention relates to an automatic balding` machine, parts being broken away oven 'tor baking rolls and the object thereoiand other parts oli' same shown in phan- 10 1s to provide a compact and eilicient structomic view.

ture in which rolls can be baked to the de- Similar characters refer to similar parts 65 sired degree automatically after the dough throughout the several figures of the drawhas been deposited within the oven. lllggS.

A further object of the invention is to et Referring more particularly to the drawfeet the formation of the rolls automatically ings, the numeral l in Figure l indicates any and in a Certain and exact manner, the suitable steel or other structure supporting 'I0 shape thereof being varied as desired. the ditiierent parts of my baking machine still further object ot the invention is and carrying` the sheet metal outside cover to provide means tor greasing or otherwise Oi the same, ln this struotin'e are carried,

treating the 'forms which form and carry rotatable in suitable bearings or journal the rolls through the oven so that the rolls boxes, polygonal drums 2 made of iron, will not adhere thereto. wood or other material and having such lilith the foregoing objects in View and contours and 'forms that the elements oat the others, the invention resides in the novel halting` chains will lit into them and will be combination, and in the arrangement and carried or dragged by them. Said drums details or construction hereinafter described, also contribute to the exact coi-operation ot s defined in the claims, and illustrated in the the two baking; chains as will be explained accompanying' drawings forming;` a material later on as this specification proceeds. is

part ot' this specification. additional driving and guiding mechanisms :so In the accompanying' drawings: l employ shai'ts 3, Briven by suitable F igure l is a longitudinal sectional partly means as will be hereinalter detailed these e5 diagrammatic side view of my baking; oven drums 2, 2 and shatts 3, 3 pull and ,fluide or machine. two halting chains. The lower balinii' chain Figures 2 and 3 are respectively top and enters the machine at the place marked by front views ot a' baking' chain element as the letter c, follows the way shown by the used in my machine. arrows through the machine and around the 9o Figures 4l and 5 are front and sectional polygonal drums and guiding shafts, then side views of initial guide rails as used in turns downwardly and returns to its startconnection with said chain elements. iup` point in front of the machine as an end- -O Figure G is a side view oit several chain less chain. The upper chain as shown in elements showing' the method ot flexibly this embodiment. ot my invention remains o5 connecting them to each other. all the time within the machine, that is Figure 7 is front view of a polygonal ,vithin the striuztural Ytraine and sheet metal guide and propellingV drum Ytor said chain coveringg` oit same. 'tollows first the same road elements. as the lower one, with which its elements co- Figure 8 is a sectional view taken at the operate, but turns then upwards and mel;- 109 line B-B of Figure 7. inn; its round, returns to the spot where it F igures 9 and 10 are similar views ol: a meets again the lower co-acting chain. round propelling and guiding shaft as used In the operation ot my machine the batter on my Abaking` machine, the sectional view or dough is placed in measured and weighed being' talren on the line AmA. of Figure 9, pieces in suitable forms pressed into the 105 Figure 1l is a top view showing the conlower chain in trent ot the machine at or nection ot the last two elements in my balzaround the place marked by the letter a. ing chains and Figure 12 is a sectional view For this purpose the lower chain may extend Cil of molds.

some distance in front of the machine and also to keep the man working there out of the range of the heat of the oven, Two shafts 3, 3 guide and propel the lower and upper chains nearer together after the roll material has been put on the lower one. For the purpose that the elements of the two baking chains should work in exact relation with each other and that the material should be slowly and gradually spread and formed and the co-acting molds of the two chain elements filled with said material, l employ a pair of guide rails 4, 4; the preferred .construction of which will `be described in detail later on and which will lead the two elements of the chains gradually together and force them in the desired exact relation. Leaving these guide rails the chains are kept in exact co-operation by the guide .and propelling drums and shafts so that no appreciable relative movements can take place between them thereby insuring the exact and faultless yshapeof the rolls produced.

Held between the two forms the rolls are baked evenly from vboth sides by steam coils 5, 5 or by any other suitable. heating means. These heating means and the sneed of the chains can be regulated by any of the usual methods in actual practice so that the rolls produced will be .as desired. After separation of the two chains'z the rolls are swept ofl' the chains by rotary brushes 6, .6, as they may stick to the forms and are removed through the spout 7 into any holding device or container and vmoved further according to necessity. I also employ containers 8, 8 for fat or butter which in co operation with cylindrical rotary brushes y 9, 9 grease the chain elements before enteringthe machine and before depositing the roll material on them. This facilitates their removal later on and insures more perfect baking and appearance of the product.

Tn Figures 2 and 3 l show one of the chain elements of my baking machine. It is preferably made of pressed sheet metal, is of rectangular shape and moves in the machine in the direction of the arrow in Figure 2. Any suitable and usual forms of rolls can be pressed into it as 10, 10 and if any other form rof rolls are to be baked with my machine the chain elements and vguiding and propelling drums and shafts can be easily exchanged and replaced by the ones containing the desired shape and size y0n the two sides of said chain elements are `continuous rows of holes 11 which co-operate with sprocket wheels 12 on Ythe propelling shafts (Figure 9). Further guide castings cofoperate with the guide device ,et :shown lat .Figures aand 5 which is screwed or fastened by any other way in the path of the two baking chains as has been explained before and shown at Figure 1. Said guide device has guide rails 14 which receive the castings 13 at a distance from. each other and in their path force them and the chain elements gradually into the desired relation and distance or closeness to each other.

The chain elements also have co-operating linking` devices preferably hooks 15 and openings 16 (Figures 2 and 6) which enable them to be in reliable connection and vat the same time flexible enough to follow almost any path prescribed in the machine for the baking chains.

The construction of the drums is shown in Figures 7 and 8. They are polygonal, preferably hexagonal and their size and shape corresponds to that of the chain elements used for the kind of roll which it is desired to produce. They are driven from the outside of the machine cover by a chain and sprocket wheels 17 or by any other suitable method. This preferred construction of said drums also assists in forcing the ytwo chain elements together, prevents their longitudinal relative motion and by applying any suitable means to keep the distance of the two drums at the twodends of my machine the utmost permitted by the chains, said chains can be kept in ya tight condition without any sagging and thereby also lhelping `their exact meeting each other and,

faultless eo-operation of their molds.

Somewhat similar purposes are served by the propelling` .and guiding shafts which are employed in the number .and position as necessary and the detailed construction of which is shown at Figures 9 and 10. They .are mainly to move said chain elements and to insure their absolute exactco-operation since the teeth of the same shaft wheels 12 are propelling both chains and catching the eo-acting pairs in the rows of holes 11 in both chains. Through forms 18 they also prevent any horizontal relative motion of `the chain elements. In order to facilitate the exchange of any form of chains to another one and make it possible to close a chain of baking elements I employ at the final pair of elements in my chains the connecting device shown at Figures 11 and 12. Both chain plates have similar alternative hinge ele-ments 19 which are set `into the right position and a rod 20 pushed through them.

lu Figure 13 the drive ofthe different shafts and drums is show-n. They are mounted in bearing elements 21 `carried vby strong Vstructural members 22. Motion of the vlower chain is produced the dri/ving chainv and of the upper chain bydriving chain h-l -71- VBoth driving ,chains receive their power and motion frere .any

suitable source; as shown by an electric motor 23. The source of the power and speed may be directly regulated or may have gearing or other methods to obtain the desired speed.

To obtain a more thorough 'understanding oitl my baking machine, l also show a perspective view of same fully assembled as in Figure lei- Parts o't' my baking machine have been removed or broken away to give a clearer drawing and parts have been shown in a phantomic view through the sheet metal covering. rfhe place where the material is placed on my lower baking chain by hand or by any other method is marked by the letter c. l is the structural steel frame, l the sheet metal covering of the oven, 8 the fat or butter containers, 9 the rotary brush cylinders for said grease material, 2 the polygonal drums, 3 the diiierent guiding and propelling shafts, b-) and 0 0 the driving chains for the lower and upper baking elements respectively and 9A the co-acting baking plates.

By the means hereinbefore described, there is provided a compact and eflicient roll baking oven or machine, the advantages of which will be readily apparent to those skilled in the art to which the invention relates. This machine, owing to its construction and operation, can be employed to automatically carry out the baking of' rolls in an automatic manner, will form the dough introduced thereinto to the desired shape, and discharge the rolls into a hopper or other receptacle after the baking operation.

W'hat I claim and desire to secure by Letters Patent is:

l. A roll baking machine comprising a casing, a pair of co-operating chains within said casing, spaced apart co-operating roll- 'orming molds, carried by said chains, said chains having baking elements ot sheet metal carrying said roll-forming molds pressed therein, and being hingedly connected to one another: polygonal drums within said casing, having recesses to receive said molds, said drums co-operating with said two chains, securing their longitudinal relation to one another and their movement in said direction; cylindrical drums within said casing having rings cut therein and co-operating with said molds, pressed in the said chain elements, securing a transversal relative position of the elements of said two chains to each other; rows of perforations in said chain elements, gears on said cylindrical drums, co-operating with said rows of perforations and further insuring the longitudinal motion and relative position of the elements of said two chains; guide pieces applied to said chain elements; two pairs of guide rails applied to said casing and apapted to co-operate with said guide pieces thereby causing the co-operating pairs of the chain elements to gradually close on one another; means to drive said polygonal and cylindrical drums, and means to adjustably apply heat to said two baking chains, said chains being led through said casing in several parallel courses in it'ront'of said heating means.

2. In a roll baking machine of the class described, two co-operating chains of baking elements, said baking elements being made of sheet metal, having roll-forming molds pressed therein and being hingedly connected in continuous pairs by means of corresponding perforations and hooks formed integrally at the respective edges of the co-oper ating chain elements, said chain elements having longitudinal rows of perforations and being adapted to be propelled thereby.

3. In a roll baking machine of the class described, two co-operating chains of baking elements, said baking elements being made of sheet metal, having roll-forming molds pressed therein, and being hingedly connected in continuons pairs by means of co'rresponding perforations and hooks formed integrally at the respective edges of the cooperating chain elements, said chain ele` ments having longitudinal rows of perforations and being adapted to be propelled thereby; guide pieces secured to said chain elements; two pairs of guide rails applied to said baking machine and adapted to force said two chains of baking elements into closed and co-operating position; polygonal drums applied to said baking machine and having sides to correspond to said baking elements and recesses in said sides adapted to receive said roll-forming molds; cylindrical drums applied to said baking machine and having ring-formed recesses cut therein and adapted to receive said roll-forming molds; said cylindrical drums having gears applied thereon co-operating with said rows ol perfoi-ations in said baking elem ents.

Signed at New York, in the county ot New York and State of New 'York this 11th day of June A. D. 1921.

FRANK NAROBE. 

